Grimes was suspended by an International Rugby Board judiciary panel for allegedly "trampling" on Wallabies number eight David Lyons in the closing minutes of Scotland's 35-15 defeat in Melbourne.

While Jones described Grimes' actions as "foolish", he felt the suspension was harsh and has called on the IRB's citing commissioners to stop over-ruling match officials.

Referee Paul Honiss, who issued a warning to Grimes at the time, did not feel the incident warranted a penalty and later reported to the panel his belief there had been no malice intended.

Grimes was cited after the game and subsequently banned from all rugby until the morning of August 14, a suspension which takes in Saturday's second Test and a Newcastle pre-season friendly.

The Scotland camp lodged an appeal against the severity of the sentence, hoping to have it heard before Saturday.

They received support from an unlikely source in Jones, who urged the judiciary officials to limit the scope of their authority.

"In Test matches we have top referees in a game - if they deal with something the way Paul Honiss did, that should be the end of the matter," Jones said.

"Judiciaries to me are for matters that aren't seen by the referees or the officials on the field and it was dealt with by Paul.

"I think Paul gave the reaction it probably needed, he said to the guy 'it was a stupid thing to do'. At the end of the day, no-one was injured, no-one was hurt.

"It should be the end of the matter.

"I don't agree with the judiciary coming over the top of the referee," he added.

Lyons was facing the turf and appeared to be held down over the ball by team-mate Phil Waugh at the time Grimes was above him.

However, the Wallabies number eight did concede rucking might not be for the long-term good of the game.

"I don't think a lot of the time there could possibly be malice intended, you are not aiming to hurt someone, but it looks bad.

"If you are trying to get less rucking, it is probably a good thing," said Lyons.

"(Using the body) is a more effective way.

"If you are there and can pick someone up and move them before they are actually in that situation (where you need to use the feet), that is a lot better than trying to put your shoe in to someone."

Lyons, despite having his top lip stitched up, is expected to start at number eight when Jones announces his Australia side, while the Wallabies could welcome back a fit-again Stirling Mortlock to outside centre.

Scotland coach Matt Williams will name his side on Thursday, though he may have to do so without knowing for sure whether either of his first-choice locks, Grimes or Scott Murray, can play.

Murray suffered severe bruising of the hip in a clash with Lyons on Sunday and continued his intense physiotherapy but it remains too early to gauge whether he will be fit in time.